Accumulation buffers support

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Accumulation buffers support

by Svilen-2 :: Rate this Message:

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Hi,

I was wondering whether Mesa supports accumulation buffers and if yes
how to enable them. Or maybe it is a Xorg extension?

Here is my platform:
Linux, Fedora 9
Xorg 7.4 (unofficial)
Mesa 7.1 (unofficial)

I'll appreciate your help

Regards
Svilen

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Re: Accumulation buffers support

by Brian Paul :: Rate this Message:

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Svilen wrote:
> Hi,
>
> I was wondering whether Mesa supports accumulation buffers

Yes.

> and if yes how to enable them.

You need to choose a GLX visual (pixel format) that supports accum
buffers.  "man glXChooseVisual".

If you're using GLUT, pass GLUT_ACCUM to glutInitDisplayMode().  Other
toolkits will have a similar mechanims.

-Brian


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Re: Accumulation buffers support

by Svilen-2 :: Rate this Message:

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The point is that it refuses to get GLX visual with accumulation
buffers. The problem doesn't exists when I'm using nVidia or ATi drivers.

That's what I'm trying to do - ignore the wx specific prefixes

WX_GL_RGBA             ,
WX_GL_MIN_RED          , 8,
WX_GL_MIN_GREEN        , 8,
WX_GL_MIN_BLUE         , 8,
WX_GL_MIN_ACCUM_RED    , 8,
WX_GL_MIN_ACCUM_GREEN  , 8,
WX_GL_MIN_ACCUM_BLUE   , 8,
WX_GL_DOUBLEBUFFER     ,
GL_NONE

Regards
Svilen

Brian Paul wrote:

> Svilen wrote:
>> Hi,
>>
>> I was wondering whether Mesa supports accumulation buffers
>
> Yes.
>
>> and if yes how to enable them.
>
> You need to choose a GLX visual (pixel format) that supports accum
> buffers.  "man glXChooseVisual".
>
> If you're using GLUT, pass GLUT_ACCUM to glutInitDisplayMode().  Other
> toolkits will have a similar mechanims.
>
> -Brian
>


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